Home / 288,588,695.79-398,583,372.57-189,909,974.31

Finding the Fourth Proportional to 288,588,695.79, 398,583,372.57 and 189,909,974.31

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Solution

The fourth proportional to 288,588,695.79, 398,583,372.57 and 189,909,974.31 is: 262,293,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,588,695.79 : 398,583,372.57 = 189,909,974.31 : x
  2. Step 2: Convert to fraction form
    288,588,695.79/398,583,372.57 = 189,909,974.31/x
  3. Step 3: Cross multiply
    288,588,695.79x = 398,583,372.57 × 189,909,974.31
  4. Step 4: Simplify right side
    288,588,695.79x = 75,694,958,045,161,856
  5. Step 5: Solve for x
    x = 75,694,958,045,161,856/288,588,695.79
  6. Step 6: Final answer
    x = 262,293,565.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.